8699399 has 4 divisors (see below), whose sum is σ = 8779320. Its totient is φ = 8619480.

The previous prime is 8699389. The next prime is 8699413. The reversal of 8699399 is 9939968.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8699399 - 2⁸ = 8699143 is a prime.

It is a super-2 number, since 2×8699399² = 151359085922402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8699399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8699309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39797 + ... + 40014.

It is an arithmetic number, because the mean of its divisors is an integer number (2194830).

Almost surely, 2^8699399 is an apocalyptic number.

8699399 is a deficient number, since it is larger than the sum of its proper divisors (79921).

8699399 is a wasteful number, since it uses less digits than its factorization.

8699399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79920.

The product of its digits is 944784, while the sum is 53.

The square root of 8699399 is about 2949.4743599496. The cubic root of 8699399 is about 205.6662755622. Note that the first 3 decimals are identical.

The spelling of 8699399 in words is "eight million, six hundred ninety-nine thousand, three hundred ninety-nine".